CN106777826A - A kind of flat speed optimization group technology of the fulcrum gas circuit of air-flotation type vibration control system three - Google Patents
A kind of flat speed optimization group technology of the fulcrum gas circuit of air-flotation type vibration control system three Download PDFInfo
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- CN106777826A CN106777826A CN201710059613.6A CN201710059613A CN106777826A CN 106777826 A CN106777826 A CN 106777826A CN 201710059613 A CN201710059613 A CN 201710059613A CN 106777826 A CN106777826 A CN 106777826A
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- G—PHYSICS
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- G06F30/00—Computer-aided design [CAD]
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- G06F30/17—Mechanical parametric or variational design
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract
The invention discloses a kind of flat speed optimization group technology of the fulcrum gas circuit of air-flotation type vibration control system three, including step：1) determine air-source pump position, determine air spring quantity N；2) N number of air spring is grouped, wherein, it is set with N in first group of spring1Individual spring, each spring is respectively l apart from air-source pump in first group1、l2、….lN1, first group of total distance between spring and air-source pump is l1=l1+l2+….+lN1, to l1、l2、….lN1Traversal search is carried out, respectively to l1、l2、….lN1Initial value is assigned, is calculated using iterative method；3) l is calculated respectively1、l2、l3；4) f=[l are calculated1‑l2]2+[l1‑l3]2+[l2‑l3]2If meeting f≤[f], optimal route is determined；If being unsatisfactory for f≤[f], return the 2) step circulation carry out, until meeting f≤[f]；5) the air spring group in air-flotation type vibration control system is grouped according to the optimal route for determining.
Description
Technical field
The present invention relates to a kind of flat speed optimization group technology of the fulcrum gas circuit of air-flotation type vibration control system three, belong to building and set
Meter field.
Background technology
At present, the air spring in air-flotation type vibration control system, generally in same source of the gas, many tracheaes, non-synchronized, uneven speed
Confession, deflation mode under work, and ignore air tubing length and confession, deflation speed to air spring works state in air floating platform
Influence, causes traditional air-flotation type vibration control system under external disturbance, and system tends to balance, and state is slow, and vibration isolation efficiency is low
Under, result even in vibration isolation system entirely ineffective.It is summarized, traditional design method has following defect：
Air spring cannot be ensured with pedestal contact surface simultaneously in same level position.The many tracheaes of air spring group
For, deflation mode, it is impossible to ensure that each air spring is identical in the filling of same time, deflation status, according to hydrodynamics and sky
Gas spring calculates mechanical characteristic, and the raised configuration and support force of air spring are not quite similar, and can cause sky spring and pedestal contact surface
Not in same level position, thus can dramatically influence air-flotation system to work, reduce vibration isolation efficiency, or even failure.
The non-flat speed work of air spring.When air-flotation type vibration control system is designed, its gas circuit length is conventional method mostly
Empirically or arbitrarily devised, this way can cause air spring under the confession of active pump, deflation status, and air movement is fast
Degree faster or slower, it is overall that non-flat speed work condition is presented, cause supporting platform seat unbalance stress.
Vibration isolation efficiency is low.Many tracheaes, non-synchronized confession, deflation mode, and ignore air tubing length to air spring reality
The influence of operating efficiency, can cause each air spring different in the filling of synchronization, deflation status, thus, it is disturbed to external world
Dynamic self adaptation degree is also not quite similar, and when the adaptive speed difference between spring group is larger, can cause vibration control body
It is low vibration isolation efficiency, or even fails.
The content of the invention
In view of problem present in background technology, it is an object of the invention to provide a kind of air-flotation type vibration control system three
The flat speed optimization group technology of fulcrum gas circuit, it simultaneously, synchronously can be supplied air spring, be deflated, and improve vibration isolation efficiency.
It is still another object of the present invention to provide a kind of flat speed optimization packet of the fulcrum gas circuit of air-flotation type vibration control system three
Technology, which solves air spring because inflation/deflation speed is uneven, causes the technical problem that support force seriously differs.
In order to achieve the above object, the present invention provides a kind of fulcrum gas circuit of air-flotation type vibration control system three flat speed optimization packet skill
Art, including step：1) determine air-source pump position, determine air spring quantity N；2) N number of air spring is arbitrarily divided into three groups, its
In, there is N in first group of spring1Individual spring, has N in second group of spring2Individual spring, has N in the 3rd group of spring3Individual spring；3) determine
The arrangement of each spring and gas circuit simultaneously calculates each group of total distance between spring and air-source pump, and each spring is apart from gas in first group
Source pump is respectively l11、l12、….l1N1, first group of total distance between spring and air-source pump is l1=l11+l12+….+l1N1, the
Each spring is respectively l apart from air-source pump in two groups21、l22、….l2N2, second group of total distance between spring and air-source pump is l2
=l21+l22+….+l2N2, each spring is respectively l apart from air-source pump in the 3rd group31、l32、….l3N3, the 3rd group of spring and gas
Total distance between the pump of source is l3=l31+l32+….+l3N3；4) optimal group is determined, in given number range, to l11、
l12、….l1N1, l21、l22、….l2N2, l31、l32、….l3N3Assign initial value and carry out traversal search, carried out respectively using iterative method
Calculate l1、l2And l3；Further calculate theory error f=[l1 -l2]2+[l1 -l3]2+[l2 -l3]2If meeting f≤[f], its
In [f] for setting error, it is determined that this is grouped into optimal group；If being unsatisfactory for f≤[f], return the 2) step be grouped circulation again, directly
To meeting f≤[f], and determine optimal group；5) according to the optimal group for determining to the air in air-flotation type vibration control system
Spring group be grouped and set gas circuit.
According in air-flotation type vibration control system of the present invention air spring group group technology in, air spring group
Total N >=16.
Beneficial effects of the present invention：
Carry out three bypass line length optimal designs, so that all gas circuits reach uniform, flat speed；The optimal air-flotation type realized
Vibration-isolating platform, under outer environmental perturbation, three gas circuits can unify, while, it is synchronous air spring is supplied, is deflated, and make whole
Body air-flotation system is rapidly achieved balance and stable state, so as to realize excellent anti-vibration performance.
(1) poised state most rapid charater.The present invention is realized to all air springs by the fulcrum gas circuit of optimal design three
Most fill soon, deflation characteristic, to meet air-flotation type vibrating isolation system fastest to up to stable state, the characteristic is in extensive air floating platform
In system, feature, advantage and importance are more obvious.
(2) the most flat fast characteristic of working condition.The present invention is based on the fulcrum gas circuit of optimal design three for proposing so that points three groups it
Air spring group afterwards, in the confession of active pump, deflation course, can realize the effect of most flat speed, it is to avoid air bullet
Spring is uneven because of inflation/deflation speed, cause support force seriously to differ, control performance it is poor.
Brief description of the drawings
Fig. 1 is the flow chart of the group technology of air spring group in air-flotation type vibration control system.
Specific embodiment
To make this purpose, technical scheme and advantage become more apparent, it is described in detail below in conjunction with accompanying drawing.
The present invention proposes a kind of three fulcrum gas circuit prioritization schemes for air spring group's packet, is set in advance in the program
Air-source pump position, and the flat speed work of air spring, i.e. supply gas velocity are identical, by the optimal route length for designing, so as to shake
Autocontrol system under extraneous environmental perturbation, can most quick, most flat speed reach poised state, and realize that good vibration isolation is special
Property.
The group technology of air spring group in air-flotation type vibration control system of the invention, including step：
1) determine air-source pump position, determine air spring quantity N；Wherein N values 16 are the minimum number of air spring group.This hair
Arrangement experience of the air spring group under supporting platform seat in bright foundation Practical Project, proposes that N is air spring group's minimum number for 16
When carrying out extensive air spring arrangement in amount, i.e. suggestion Practical Project, the quantity of air spring is more than 16；
2) N number of spring is divided into 3 groups, three supports three of the present invention in the most simple equipment of air-flotation type vibration control system
Fulcrum gas circuit scheme, developed, extend to air spring group in, by air spring group be divided into three groups, that is, formed three
Point gas circuit；
N is set with wherein first group spring1Individual spring, each spring is respectively l apart from air-source pump in first group11、l12、…
.l1N1, first group of total distance between spring and air-source pump is l1=l11+l12+….+l1N1, to l11、l12、….l1N1Carry out time
Go through search, l11、l12、l13….l1N1∈[lmin,lmax], wherein, lmin, lmaxIt is given according to actual demands of engineering and experience, divides
It is other to l11、l12、….l1N1Initial value is assigned, calculating l is carried out using iterative method1；
N is set with second group of spring2Individual spring, each spring is respectively l apart from air-source pump in first group21、l22、….l2N2,
First group of total distance between spring and air-source pump is l2=l21+l22+….+l2N2, to l21、l22、….l2N2Traversal is carried out to search
Rope, l21、l22、l23….l2N2∈[lmin,lmax], wherein, lmin, lmaxIt is to be given according to actual demands of engineering and experience, it is right respectively
l21、l22、….l2N2Initial value is assigned, calculating l is carried out using iterative method2；
N is set with 3rd group of spring3Individual spring, each spring is respectively l apart from air-source pump in first group31、l32、….l3N3,
First group of total distance between spring and air-source pump is l3=l31+l32+….+l3N3, to l31、l32、….l3N3Traversal is carried out to search
Rope, l31、l32、l33….l3N3∈[lmin,lmax], wherein, lmin, lmaxIt is to be given according to actual demands of engineering and experience, it is right respectively
l31、l32、….l3N3Initial value is assigned, calculating l is carried out using iterative method3；
So-called traversal, refers to, along certain search pattern, each node in tree to be done once and only done successively once accessing；
In data structure, seek to all nodes in certain data structure all to access one time.
Iteration is
The process that a kind of old value recursion of continuous use variable is newly worth, to realize that the method that this process is used is referred to as iterative method.
3) theory error f=[l are calculated1 -l2]2+[l1 -l3]2+[l2 -l3]2If meeting f≤[f], optimal route is determined；If
Be unsatisfactory for f≤[f], return the 2) step circulation carry out, until meeting f≤[f]；[f] is set-point, is drafted according to Practical Project,
It is optimal gas circuit if the calculated value is less than or equal to setting error [f], otherwise proceeds optimization and calculate.
4) the air spring group in air-flotation type vibration control system is grouped according to the optimal route for determining.
Embodiment
As shown in figure 1, l1=l11+l12+….+l1N1、l2=l21+l22+….+l2N2、l3=l31+l32+….+l3N3.By control
Valve coutroi velocity V1、V2、V3, time T1=l1/V1、T2=l2/V2、T3=l3/V3；T is max (T1、T2、T3), further will most
Big value is minimized, that is, need to shorten the time of T, that is, T is min [max (T1、T2、T3)], it is necessary to meet T1=T2=T3, regulation
Control valve so that flow velocity V1=V2=V3, therefore l1=l2=l3, and then calculate f=[l1 -l2]2+[l1 -l3]2+[l2 -l3]2
=0, meet f≤[f], determine optimal gas circuit, air spring group is grouped according to the optimal gas circuit for determining.
Although disclosed herein implementation method as above, described content is only to facilitate understanding the present invention and adopting
Implementation method, is not limited to the present invention.Any those skilled in the art to which this invention pertains, are not departing from this
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the formal and details implemented,
But scope of patent protection of the invention, must be still defined by the scope of which is defined in the appended claims.
Claims (2)
1. a kind of flat speed of the fulcrum gas circuit of air-flotation type vibration control system three optimizes group technology, including：
1) determine air-source pump position, determine air spring quantity N；
2) N number of air spring is arbitrarily divided into three groups, wherein, there is N in first group of spring1Individual spring, has N in second group of spring2It is individual
Spring, has N in the 3rd group of spring3Individual spring；
3) determine the arrangement of each spring and gas circuit and calculate each group of total distance between spring and air-source pump, in first group each
Spring is respectively l apart from air-source pump11、l12、….l1N1, first group of total distance between spring and air-source pump is l1=l11+l12
+….+l1N1, each spring is respectively l apart from air-source pump in second group21、l22、….l2N2, second group between spring and air-source pump
Total distance be l2=l21+l22+….+l2N2, each spring is respectively l apart from air-source pump in the 3rd group31、l32、….l3N3, the
Three groups of total distances between spring and air-source pump are l3=l31+l32+….+l3N3；
4) optimal group is determined, in given number range, to l11、l12、….l1N1, l21、l22、….l2N2, l31、l32、…
.l3N3Assign initial value and carry out traversal search, l is respectively calculated using iterative method1、l2And l3；Further calculate theoretical error f=
[l1-l2]2+[l1-l3]2+[l2-l3]2If meeting f≤[f], wherein [f] is setting error, it is determined that this is grouped into optimal group；
If being unsatisfactory for f≤[f], return the 2) step be grouped circulation again, until meeting f≤[f], and determine optimal group；
5) the air spring group in air-flotation type vibration control system is grouped and is set gas circuit according to the optimal group for determining.
2. group technology according to claim 1, it is characterised in that quantity N >=16 of air spring group.
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| CN201710059613.6A CN106777826B (en) | 2017-01-24 | 2017-01-24 | Air-floating vibration control system three-pivot air path constant-speed optimization grouping technology |
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| CN201710059613.6A CN106777826B (en) | 2017-01-24 | 2017-01-24 | Air-floating vibration control system three-pivot air path constant-speed optimization grouping technology |
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| CN106777826B CN106777826B (en) | 2020-06-19 |
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| CN104090985A (en) * | 2014-07-25 | 2014-10-08 | 武汉大学 | Active disconnection optimum fracture surface searching method based on electrical distance |
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| CN105188069A (en) * | 2015-08-09 | 2015-12-23 | 大连理工大学 | Method for layout of nodes of bridge monitoring system based on network efficiency |
| CN104992454A (en) * | 2015-08-11 | 2015-10-21 | 辽宁工程技术大学 | Regionalized automatic-cluster-change image segmentation method |
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